In terms of large core, the exynos 990 uses a new exynos M5 core, which is 20% higher than the previous generation of exynos M4 and 50% lower in power consumption. This means that the exynos 990 not only has stronger performance, but also saves more power.
In terms of GPU, exynos 990 GPU is arm's new generation mali-g77 MP11, with energy efficiency 20% higher than exynos 9820 mali-g77 MP12.
It should be noted that exynos 990 needs to be matched with exynos modem 5123 to realize 5g network support.